1. Bagozzi, R.P., Y. Yi, and L.W. Phillips (1991), “Assessing construct validity in organizational research,” Administrative Science Quarterly, 36(3): pp. 421-459.
2. Barco 2004, http://www.barco.com/barcoview/ downloads/040614c.pdf, accessed May 4, 2006.
3. Buck, D., B. Jeffers, and A. Marquess (2004), “I-95 shutdown-coordinating transportation and emergency response,” U.S. Department of Transportation Federal Highway Administration, 68(2).
4. California Engineer, Student Journal of the UC Engineering Colleges (2003), “The future of transportation: platforms of the intelligent vehicle initiative,” 81(3): pp. 15-19.
5. Consumer Guide 2006, http:// products.consumerguide.com/reviews/ product.epub?productId=19821, accessed May 4, 2006.